Music-leaf turner.



A. T..ZIEGLER.

MUSIC LEAF TURNER.

APPLIUATION FILED SEPT. 2, 190B.

909,505; 7 Patented Jan. 12, 1909.

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MUSIC LEAF TURNER.

APPLICATION FILED SEPT. 2, 190a.

Patented Jan. 12, 1909.

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MUSIC LEAP TURNER. v uruoumn FILED SBPT.2,1908.

909,505. Patented Jan.12,1909.

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MUSIC LEAF TURNER.

APPLICATION FILED 83212, 1908.

909,505. Patented Jan. 12, 1909.

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A. T. ZIHGLER.

M11816 LEAP TURNER.

APPLICATION FILED SEPT. 2, 1908.

Patented Jan. 12, 1909.

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ALFRED T. ZIEGLER, or ALLEGHENY, PENNSYLVANlA.

IVZUSIC-LEAF TURNER.

Specification of Letters Patent.

Patented Jan. 12, 1909.

Application filed September 2, 1968. Serial No. 451,368.

To all whom it may concern:

Be it known that I, ALFRED T. ZmoLEa, a citizen of the United States of America, residing at Allegheny, in the county of Allegheny and State of Pennsylvania, have invented certain new and useful Improvements in Music-Leaf Turners, of which the following is a specification, reference being had to the accompanying drawing.

This invention relates to a music leaf turner, and the primary object of my invention is to provide an electrical device for automatically turning the leaves or shoes of music backward or forward, as occasion may demand.

Another object of this invention is to provide an electrical music leaf turner that can be used in connection with a piano, organ, or upon a music stand. .Vhen used in connection wit-h a piano or a music stand, the device is preferably placed in operation by a pedal action, and when used with an organ, a knee action is provided.

A further object of my invention is to provide a motor actuated music leaf turner having a revoluble disk actuated by said motor. In connection with the disk, a plurality of leaf turning arms are used, each arm having an electro magnet, which when energized moves in unison with the disk.

A still further object of my invention is to provide novel switches for controlling the operation of the motor of the music leaf turner and the energization of the electro magnets forming part of the music leaf turner.

The above objects are attained by a device illustrated in the drawings, wherein,

Figure 1 is a front elevation of a portion of the music leaf turner partly in section, Fig. 2 is a plan of the same partly in horizontal section, Fig. 3 is a side elevation of one of the leaf clamps, Fig. i is a vertical transverse sectional view of a portion of the music leaf turner illustrating the motor support, the motor, and the revoluble disk, Fig. 5 is a horizontal sectional view taken on the line of Fig. ft, illustrating the motor fields in plan, Fig. 6 is an enlarged elevation of a portion of one of the leaf turning arms, illustrating one of the supporting collars thereof in section, Fig. 7 is a plan of the pedal action to the switch used in connection therewith, Fig. 8 is a longitudinal sectional. view of the same, Fig.

9 is a front elevation of the pedal action and switch, Fig. 10 is a diagrammatic View illustrating the electrical connections for the pedal action of my music leaf turner, Fig. 11 is a similar view illustrating the electrical connections for the knee action of the music leaf turner, Fig. 12 is a front elevation of the knee action of the music leaf turner, Fig. 13 is a longitudinal sectional view of the switch forming part of the knee action, Fig. l i is a transverse sectional view of the switch, Fig. 15 is a side elevation of a motor switch forming part of the knee action.

In the accompanying drawings, 1 designates a board which is clamped to the music leaf holder 2 of a piano, organ, or music stand, suitable clamps 3 being used'for this purpose. The board 1 is made of agreater depth than the holder 2, whereby the upper and lower edges of the board will protrude above and below the upper and lower edges of the holder 2, to provide clearance for part of the mechanism of the music leaf turner. The board 1 adjacent to the vertical edges thereof is provided with vertical slots 4 and adjustably mounted in said slots are screw clam as 5 for adjustably holding a ledge 6, this ledge being designed to support sheet music against the board 1. The board centrally of the upper edge thereof is provided with an extension 7, and extending from the ledge 6 to extension 7 is a vertical rod 8 upon the front side of the board 1, this rod being fixed in the extension 7 and loose Within the ledge 6, whereby said ledge can be adjusted. The sheet or score of music is placed under the rod 8, said rod being located between the two central most sheets of the music score, whereby the sheets can be turned from right to left, or vice versa, and the piece of music prevented from being accidentally displaced while the music leaf turner is in operation.

Mounted upon the extension 7 is a cylindrical casing 9 having the front lower side thereof open, as at 10, to provide clearance for the leaf turning arms.

Secured centrally of the rear side of the board 1 by brackets 11, is a vertical tube 12, said tube extending into the casing 9. The upper and lower ends of the tube 12 are provided with bushings 13, and extending through said bushings is a vertical shaft 14.. The lower end of the shaft 14; is supported by a thrust bearing 15, forming part of a cylindrical casing 16, carried centrally of the lower edge of the board 1. Mounted upon the shaft 14 within the casing 16 is a gear wheel 17 meshing with a worm 18, mounted upon the armature shaft 19 of a motor 20. The motor 20 is carried by field pieces 21 suspended from brackets 22, secured to the rear side of the board 1, one of said brackets being bent to clear the tube 12. Between the brackets 22 are arranged the fields 23 of the motor 20.

Upon the upper end of the shaft 14 is mounted a metallic disk 24, and loosely mounted upon the upper end of tube 12 is a plurality of superimposed collars 25, said collars having peripheral flanges 26, sup porting revoluble rings 27 and rlngs of insulation 28. The rings of insulation 28, are split to provide clearance for leaf turning arms 29 carried by the rings 27. Embedded in the rings of insulation 28 are split metallic rings 30 and adapted to engage the metallic rings 30 are brushes 31, carried by a brush holder 32 arranged in the cylindrical casing 9 and insulated therefrom, said brushes being insulated from each other.

The leaf turning arms 29 are all bent to provide horizontal portions 33 lying in a plane parallel with the metallic disk 24, and the horizontal portion of each arm is provided with an electro magnet 34, said electro magnet being connected to the arm by a wire 35 and to the metallic ring 30 of said arm by a wire 36. The outer end of each one of the arms 29 is provided with a leaf clamp, said clamp comprising a hanger 37 slidably mounted upon the arm. The hanger 37 supports a pivot pin 38 for two clamping members 39, these members being normally held in engagement with each other by a coil spring 40 arranged upon the pivot pin 38 with the end of said spring bearing against the upper ends of the clamping members 39. Any suitable clasp can be arranged upon the ends of the arms 29 for detachably gripping the upper edges of sheets or leaves of music 41. placed upon ledges 6.

The mechanism above described is designed for the following operation. Vhen the motor 20 is placed in operation, the metallic disk 24 will be revolved, and when one of the electro magnets is energized, said magnet will be attracted to the disk and move in unison therewith, consequently, the arm supporting the magnet will be swung in the direction in which the metallic disk 24 revolves. This operation will be further elucidated hereinafter.

Reference will now be had to the Figs. 7 and 9 inclusive, wherein T have illustrated a pedal action designed for use in connection with pianos and music stands and for controlling the operation of the motor 20 and the energizing of the electro magnets 34. This pedal action comprises a base plate 42 having standards 43 and 44. The pedal action can be located upon the floor adjacent to the pedals of a piano or can be suitably clamped to the foot board thereof. Arranged upon the base plate 42 between the standards 43 and 44 is an insulated standard 45 supporting circumferentially arranged posts 46, which are provided with resilient tangentially disposed contacts 47. Mounted between the standards 43 and 44 and extending through the opening 48 provided therefor in the standard 45 is a shaft 49. Journaled upon this shaft is a hub 50 of two ratchet wheels 51 and 52, the teeth of the ratchet wheel 51 being the reverse of the teeth of the ratchet wheel 52 and the teeth of each wheel corresponding in number to the arms 29 of the music leaf turner. Mounted upon the hub 50 is a circular plate of insulation 53, the periphery of which is provided with a segment contact block 54 adapted to make a wiping contact with the resilient contacts 47. Pivotally connected to the standard 44, as at 55, are two pedals 56 and 57, these pedals extending through openings 58 formed in the standards 43 and 45. Universally connected to the pedals 56 and 57, as at 59 are two pawls 60 and 61, these pawls extending upwardly through the openings 62 of a guide plate 63, carried by the standard 43. The openings 62 are made of a sufficient size to accommodate springs 64 and 65, carried by each pawl, these springs being designed to normally hold the pawls out of engagement with the ratchet wheels 51 and 52. The springs 65 are of a greater tension than the springs 64, whereby when the edals 56 and 57 are lowered, the pawls 60 and 61 will be moved to engage the teeth of the ratchet wheels 51 and 52. The pedals 56 and 57 are normally supported in an elevated position by coil springs 66 connecting therewith and extending through openings 67 in the guide plate 63 and connecting with lugs 68, carried by the standard 43. The pedals besides actuating the ratchet wheels 51 and 52 through the medium of the pawls 60 and 61 are employed for controlling switches 69 and 70 supported by the standard 44. These switches are identical in construction, comprising arms 71, 72, 73 and 74, fixed to insulation on the standard 44, as at 75 and to the pedals by insulating blocks 76. The standard 44 directly beneath said arms 71 to 74 inclusive supports arms 77, 78, 79 and 80, having contact points 81, 82, 83 and 84.

Reference will now be had to Fig. 10 of the drawings, wherein the electrical connections between the various elements of my invention are clearly shown. Reference numeral 85 designates a suitable source of electrical energy which is connected by a wire 86 to the fields 23 of a motor 20, these fields being connected by wires 87, 88 and 89 to the arms 74 and 72 of the switches 69 and 70, respectively. The other pole of the battery 85 is connected by a wire 90 to the segment contact 54 of the circular plate 53, ant by wires 91, 92 and 93 to the arms 71 and 73 of the switches and 69 respectively. The arm 77 of switch 70 is connected by a wire 9-1- to the arm of switch 69. Arm 78 of switch 70 is connected by a wire 95 to the arm 79 of switch 69. Wire 95 is connected by a wire 96 to the brushes 97, said brushes being connected by a wire 98 to the wire 9%. The contacts 17 are connected by wires 99 to the brushes 31, which contact with the metallic rings 30 that are connected by wires 36 to the electro magnets 3 1, and the other terminal of these magnets is connected by wires 35 to the arms 29. Now assuming that the pedal 56 is used to turn a leaf of music, from the right hand side of the board 1 to the left hand side, and that said pedal 56 has been pressed, the arms 71 and 72 of the switch 70 engage the contacts 81 and 82 of the arms 77 and 78, and the motor 20 is started in one direction, for instance in a direction for moving arm 29 from right to left. The circuit is as follows, from battery 85 by wire 86 to the fields 23, by wires 87 and 89 to arms 72, contacts 82 and arm 78 to wire 95, by

wire 96 to the brushes 97 of the motor, from said brushes by wires 98 and 9e: to arms 77, contact 81 to arm 71, wires 92, 91 and to the battery 85. A partial depression of the pedal 56 establishes the above circuits starting the motor, and a further depression of the pedal 56 causes the pawl 60 to engage one of the teeth of the ratchet wheel 51, causing said ratchet wheel to move and make a wiping contact between the segment contact 5 and one of the contacts 17. One of the electrical magnets is then energized by the following electric circuit :from battery 85 by wires 86 and 100 to the shaft 14, collar 25, ring 27, arm 29, wire 35, of the electro magnet 31, wire 36 to the insulated metallic ring 30, through the brush 31 contacting with said ring, wire 99 to contact 47, segment contact 54:, by wire 90 to the battery. W hen the electro magnet 34: is energized, it is attracted to the metallic disk as, and the arm 29 supporting the energized electro magnet is swung from right to left, carrying with it the sheet or leaf of music attached to said arm. immediately upon the pedal 56 being released, the springs 66 return the pedal to its normal position, while the spring 64 carries the pawl 60 out of engagement with the ratchet wheel 51. The circuit that started the motor 20 is broken, consequently the motor comes to a standstill. Assuming now that part of the music score is to be repeated and that it is necessary to turn the leaves of music from the left to the rig 1t, the pedal 57 is pressed, which starts the motor 20 in a reversed direction from that previously described. The circuit for this reverse movement of the motor 20 is as follows,: battery 85. by wire 86 to the fields 23, wires 87 and 88 to arm 74, contact 8 1 to arm 80, wire 98 to brushes 97 of the motor, wire 96 to arm 79, contact 83 to arm 73, wires 93, 91 and 90 to the battery 85. Following the placing of the motor 20 in operation, the pawl 61 is moved into engagement with the ratchet wheel 52 and this ratchet wheel is actuated to move the segment contact 5 1 in an opposite direction from that previously described, whereby said contact 54 will again engage the contact 47 previously engaged, and will establish a circuit for energizing the previously mentioned energized electro magnet 3-1.

From the foregoing description, it is apparent that five depressions of the pedal 56 necessary to intermittently move five leaves in one direction, and that to reverse the movement of the leaves, that five depressions of the pedal 57 are necessary. Any reasonable number of arms and electro magnets may be used, for convenience, but five are shown.

Reference will now be had to the knee action of my music leaf turner, and this action in a great many particulars resem' bles the pedal action. The knee action is mounted under the key case of an organ. Secured to the key case 101 is a plate 102 having hangers 103 for a shaft 104:, this shaft extending through a depending plate of insulation 105. Revolubly mounted upon the shaft 104 are ratchet wheels 106 and 107 adapted to rotate in unison with a circular plate 108 mounted upon the hub 109 of said ratchet wheels. The circular insulation plate 108 is provided with a segment contact 110 to make a wiping contact with tangentially disposed contacts 111 carried by the plate of insulation and connecting with the brushes 31 of the casing 9, similar to the brushes 17. The elements 102 to 111 are particularly the same as the elements in connection with the pedal action, with the exception that the elements 102 and 103 are inverted.

Loosely mounted upon the shaft 10 1 is a rock arm 112 and pivotally connected to this rock arm beneath the ratchet wheel 107, as at 113 is a double escapement lever 11% having a pawl 115 for engaging the ratchet wheel 106 and a pawl 116 for engaging the ratchet wheel 107. Lever 114 is limited in its movement relative to the rock arm 112 by two projections 117, and said rock arm is limited in its movement relative to the hanger 103 by projections 118. F or normally holding the rock arm 112 in a vertical position with the pawis 115 and 116 out of engagement wit-h the ratchet wheels 106 and 107, coil springs 119 are arranged at the sides of the rock a 111 112 and connected to said arm and to the hanger 103.

' The key case 101 is provided with a hanger 120. and pivotally' mounted in the bifurcated end of said hanger by a pin 121 is a depending switch arm 122 having insulated side blocks 123. The sides of the hanger 120 are provided with insulation hangers 124 for depending stationary spring contact arms 125, 126, 127 and 128 adapted to be engaged by resilient contact arms 129, 130, 131 and 132. The lower end of the switch arm 122 and the lower end of the escapement lever 11% are connected together by a rod 133, upon which are adjustably mounted depending adjustable knee stops 13a, said stops being adjusted by set screws 135*. The switch arm 122 together with the contact arms 125 to 132 inclusive, constitute means for controlling the motor 20 and the mechanism actuated thereby which is the same in connection with the knee action as with the pedal action.

The circuit for starting the motor 20 in a direction for moving arm 28 from right to left, is as follows ;battery 85 by wire 135 to the fields 23, from the fields 23 by wires 136 and 137 to arm 127, through arm 131 by wire 138 to the brushes 97, by wire 139 to arm 132, through arm 128 and by wires 14.0 and 141 to the battery 85. To start the motor in an opposite direction the circuit is as follows;-Battery 85 through wire 135 to the fields 23, by wires 136 and 1&2 to arm 126, through arm 130 by wire 139 to the brushes 97, by wire 138 to arm 129, through arm 125 and by wires 143, 140 and 14:1 to the battery. The circuits for energizing the electro magnets 34 with the knee action are the same as with the pedal action.

It is apparent that when the rod 133 is moved in either direction that a circuit will first be established for starting the motor and then one of the ratchet wheels 106 or 107 will be actuated to move the circular insulation plate 108 and cause the segment contact 110 to wipe one of the contacts 111 and establish a circuit through one of the electro magnets 34:. If so desired, two or more music leaf turners may be connected in multiple and controlled from the said pedal switch. This arrangement for orchestra or concert bands.

Having now described my invention what I claim as new, is

1. In a music leaf turner, the combination with a board, an adjustable ledge supported thereby, a suitable source of electric energy, of a motor carried by said board and in circuit with said source of electric energy, a vertical shaft supported by said board and adapted to be driven by said motor, a metallic disk carried by the upper end of said shaft, a plurality of leaf turning arms movably arranged at the upper end of said shaft, clamps carried by the ends of said arms, electro magnets carried by said arms and in circuit with said source of electric energy and adapted when energized to move with said disk, a pedal action, said pedal action comprising pivoted pedals, switches actuated by said pedals and in circuit with said source of electric energy for controlling the operation of said motor, ratchet wheels revolubly mounted above said pedals, a spring pressed pawl movable with each pedal for moving said ratchet wheels, a circular plate of insulation movable with said ratchet wheels, a segment contact carried by said plate and in circuit with said switches and said source of electric energy, and a plurality of contacts corresponding in number to said leaf carrying arms arranged above said pedals and adapted to be engaged by said segment contact for energizing said electro magnets and causing said magnets to move with said metallic disk, substantially as described.

2. In a music leaf turner, the combination with a board and a suitable source of electric energy, of a motor supported by said board, a vertical shaft carried by said board and adapted to be revolved by said motor, a plurality of contact rings revolubly supported at the upper end of said shaft and in circuit with said source of electric energy, a leaf turning arm carried by each ring, an electro magnet carried by each arm and in circuit with said source of electric energy, a disk carried by the upper end of said shaft, for engaging said electro magnets when energized, a pedal action, said action comprising pivoted spring held pedals, switches in circuit with said motor and said source of electric energy for controlling the operation of said motor, ratchet wheels revolubly supported above said pedals, spring pressed pivoted pawls carried by said pedals for moving said ratchet wheels, a circular plate revolubly mounted above said pedals and actuated by said ratchet wheels, a segment contact carried by saidplate and in circuit with said switch and said source of electric energy, and a plurality of contacts tangentially arranged above said plate and in circuit with said contact rings, and said source of electric energy and adapted to be engaged by said segment contact for energizing said electro magnets, substantially as described.

3. In a music leaf turner, the combination with a board, and a suitable source of electric energy, of a motor supported by said board and in circuit with said source of electric energy, a vertical shaft revolubly supported by said board and adapted to be actuated by said motor, a disk carried by the upper end of said shaft, a plurality of leaf turning arms revolubly arranged at the upper end of said shaft, an electro magnet carried by each 1 arm and in circuit with said source of electric energy, a pedal action, said action comprismg spring held pedals, switches 1n circult with said motor and said source of electric energy for controlling the'ope'ration of said motor, ratchet wheels revolubly supported above said pedals and adapted to be intermittently moved thereby, a segment shaped contact movable with said ratchet wheels, and in circuit with said switches and said source of electric energy, and a plurality of contacts in connection with said pedal action and in circuit with said electro magnets and said source of electric energy for engaging said segment contact and intermittently energizing said electro magnets.

In a music leaf turner, the combination with a board and a suitable source of electric energy, a motor supported by said board and in circuit with said source of energy, a vertical shaft carried by said board and adapted to be revolved by said motor, a plurality of contact rings revolubly supported at the upper end of said shaft and in circuit with said source of energy, a leaf turning arm carried by each ring, an electro magnet carried by each arm, a disk carried by the upper end of said shaft and adapted to be engaged by said electro magnets, an action in circuit with said source of energy, said motor and said electro magnets, said action comprising switches for controlling the operation of said motor, a movable plate, a segment contact carried thereby, a plurality of contacts in circuit with said rings and said source of energy and adapted to be engaged by said segment contact for intermittently energizing said electro magnets, and means in connection with said action for first operating said switches and then moving said segment contact.

5. In a music leaf turner, the combination with a board and a suitable source of electric energy, a motor supported by said board and in circuit with said source of energy, a vertical shaft carried by said board and adapted to be revolved by said motor, a plurality of contact rings revolubly supported at the upper end of said shaft and in circuit with said source of energy, a leaf turning arm carried by each ring, an electro magnet carried by each arm, a disk carried by the upper end of said shaft and adapted to be engaged by said electro magnets, an action in circuit with said source of energy, said motor and said electro magnets, said action comprising switches for controlling the operation of said motor, a movable plate, a segment contact carried thereby, a plurality of contacts in circuit with said rings and said source of energy and adapted to be engaged by said segment contacts for intermittently energizing said electro magnets, and means in connection with said action for controlling said switches,

6. In a music leaf turner the combination with a board and a suitable source of electric energy, of a motor supported by said board and in circuit with .said source of energy. a" vertical shaft carried by said board and adapted to be revolved by said motor a disk carried by the upper end of said shaft, leaf turning arms movably arranged the upper end of said shaft, an electro magnet carried by each arm and adapted to be energized to engage said disk and more therewith, an action in circuit with said source of energy, said magnets and. said motor, said action comprising switches for controlling the operation of said motor, movable ratchet wheels, a segment contact adapted to be moved by said ratchet wheels, a plurality of contacts adapted to be intermittently engaged by said segment contact and in circuit with said source of energy and said electr magnets for intermittently energizing said magnets, means in connection with said action for operating sait switches, and means in connection with the first mentioned means for moving said ratchet wheels.

7. in a music leaf turner the combination with a board and a suitable source of electric energy, of a motor supported by said board and in circuit with said source of energy, a vertical shaft carried by said board, and adapted to be revolved by said motor, a disk carried by the upper end of said shaft, leaf turning arms movably ar ranged at the upper end of said shaft, an electro magnet carried by each arm and adapted to be energized to engage said disk and move therewith, an action in circuit with said source of energy, said magnets and said motor, said action comprising switches for controlling the operation of said motor, a segment contact, a plurality of contacts adapted to be intermittently engaged by .tid segment contact and in circuit with said source of energy and said electro magnets for intermittently energizing said magnets, means in connection with said action for operating said switches, and means in connection with the first mentioned means for moving said segment contact.

8. In a music leaf turner, the combination with a suitable source of electric energy, of a motor in circuit with said source of energy, a vertical shaft adapted to be revolved by said motor, a disk carried by the upper end of said shaft, leaf turning arms movably arranged at the upper end of said shaft, an electro magnet carried byeach arm and adapted to be energized to engage said disk and move therewith, an action in circuit with said source of energy, said magnets and said motor, said action comprising switches for controlling the operation of said motor, a segment contact, a plurality of contacts adapted to be intermittently engaged by said segment contact and in circuit with said source of energy and said said action for operating said switches, and means in connection with the first mentioned means for moving said segment contact.

9. A music leaf turner comprising a motor, a vertical shaft adapted to be driven by said motor, a disk carried by the upper end of said shaft, leaf turning arms movably arranged at the upper end of said shaft, an electro magnet carried by each arm and adapted to be energized to engage said disks and move therewith, an action in circuit with said motor and said electro magnets, said action comprising switches for controlling the operation of said motor, and a manually actuated contact for intermittently estabeoaaoa electro magnets for intermittently energizllishing a circuit through said electro ing said magnets, means in connection with I magnets.

10. A music leaf turner comprising a motor actuated shaft, a disk carried by the upper end of said shaft, leaf turning arms, an electro magnet carried by each arm and adapted when energized to engage said disk and move therewith, and an action for controlling the operation of said shaft and the energizing of said electro magnets.

In testimony whereof I afiix my signature in the presence of two witnesses.

ALFRED T. ZIEGLER.

Witnesses K. H. BUTLE MAX H. SnoLoVITz. 

